The cell theory includes all of these concepts except
A) each cell maintains homeostasis at the cellular level.
B) cells are the smallest units that carry out the essential functions of life.
C) cells are the building blocks of all organisms.
D) all cells come from the division of preexisting cells.
E) every cell is capable of living on its own if isolated from the body.
E
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In case of hemorrhage, platelets are stored as a reserve in
A) the heart. B) the kidneys. C) the spleen. D) the thymus gland. E) bone marrow.
A 60-year-old man has a painful trail of skin discoloration and fluid-filled vesicles on one side of his chest. What is the likely cause of his symptoms?
A. Shingles B. Rabies C. Spina bifida D. Amyotrophic lateral sclerosis E. Polio
What type of cartilage makes up the frame of the outer ear?
A. Fibrocartilage B. Hyaline cartilage C. Elastic cartilage
Which statement accurately describes the effects of substrate and enzyme concentrations on reaction rate?
A. An increase in substrate concentration or a decrease in enzyme concentration will increase the reaction rate. B. A decrease in substrate concentration or an increase in enzyme concentration increases the reaction rate. C. An increase in either substrate or enzyme concentration will decrease the reaction rate. D. An increase in substrate concentration increases the reaction rate, but enzyme concentration has no effect. E. An increase in either substrate or enzyme concentration will increase the reaction rate.